Abstract
Malocclusion is a common oral disease. Fixed appliance technology is the most common and effective malocclusion orthodontic treatment method, and the key step of fixed appliance technology is the bending of orthodontic archwire. Because the slip warping phenomenon exists in the process of orthodontic archwire bending, it is difficult to realize rapid and accurate bending of the customized orthodontic archwires. A bending springback mechanism model considering the slip warping of the archwire in the process of bending is established. The influence of the slip warping phenomenon of the archwire between the fixed mold and the rotation mold is considered in the analysis of the springback mechanism. The bending process of archwire is divided into two stages: elastic deformation and plastic deformation, based on the variety of the bending radius in the bending process. A springback mechanism model of the orthodontic archwire is established. The springback mechanism model of the orthodontic archwire is analyzed and compensated based on the characteristics of the robot structure. An archwire bending experiment is carried out to verify the correctness of the springback mechanism model of the orthodontic archwire.
Highlights
Malocclusion is one of the three major oral diseases which are harmful to human health and associated with significant morbidity among children and adolescents.[1,2] The incidence of malocclusion is as high as 92.1% if the ideal jaws are used as the reference
As the most mature and effective malocclusion orthodontic treatment method, fixed appliance technology is in the leading position, and its key step is the precision forming of orthodontic archwire.[4,5]
The analysis models were built by numerous domestic and scholars in a specific environment through the analysis of material properties, using the scanning electron microscope (SEM), X-ray diffraction methods, the improved bending test of three-point and the finite element analysis
Summary
Malocclusion is one of the three major oral diseases which are harmful to human health and associated with significant morbidity among children and adolescents.[1,2] The incidence of malocclusion is as high as 92.1% if the ideal jaws are used as the reference. It was concluded that the bending springback is greatly affected by the length of the bending arm They established the springback model based on the influence of bending arm.[17] Zhang et al studied the bending characteristics of four archwires (Ni-Ti orthodontic archwires, beta Ti alloy orthodontic archwires, Australian orthodontic archwires, and Chinese stainless steel archwires) by finite element software. The springback angle increases as the increase of the bending angle.[18] Guo et al used the deform finite element software to model and simulate the bending process of metal wires. It was concluded that the formed angle of the wire is approximately linear with the rotation angle of the roller in a certain range They carried out a metal wire bending experiment by a wire bending machine to prove the correctness of the simulation results.[19] Lin et al studied the influence of initial residual stresses.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
